(下列各题共用备选答案)
退虚热，除疳热，清湿热，解热毒的药物是

The news item is mainly about the background ofA．Martin's struggle against his political opponents.B．the opposition's calling a vote of no confidence.C．Martin's opposition to the United States.D．the new election campaign in Canada. 点击查看答案

若原[Ag(CN)2]一溶液中含有浓度为0．2mol.L一1的KCN，有无沉淀生成? 点击查看答案